Another autoimmune disease, atrophic gastritis, thins the lining of your stomach and prevents your body from making enough hydrochloric acid and intrinsic factor you need to absorb B12
According to two studies analysing the evidence on B12 in plant-based foods, only the seaweeds hijiki, nori and chlorella, mushrooms, a few non-common plants and a type of fermented soya yoghurt contained some all due to bacterial activity but amounts vary with some of the samples containing no B12 (Watanabe and Bito, 2018
When neurological symptoms like numbness or tingling are already present, that speed matters
How Vitamin B12 Injections Help Boost Energy A B12 injection works by rapidly restoring B12 levels, helping the body: Improve energy metabolism Support nerve function Reduce fatigue Improve mental clarity Many patients report feeling more energised and focused after a course of injections, particularly when deficiency was the underlying cause Who Commonly Benefits from Vitamin B12 Injections